Analitik ve deneysel analizlere dayalı olarak silindirle sıkıştırılmış beton (SSB) kaplamalar için en iyi sıkıştırma teknikleri ve boylam soğuk derz bağlanma çözümlerinin belirlenmesi

Cold longitudinal joints are the weakest elements in any pavement structure. Limited research has addressed techniques for durable longitudinal joints in hot-mix asphalt (HMA) pavements, but no specific study exists for roller-compacted concrete (RCC) pavements. This thesis investigates the ideal geometric arrangements of cold joints (90°, 60°, 45°, 30°, notched wedge-N1, doubly-notched wedge-N2) for RCC pavements in terms of compactability and mechanical properties. It also examines the bonding performance of cold longitudinal RCC joints and evaluates which reinforcement material (water spraying-W, cement slurry-S, epoxy-based repair mortar-E) yields better results. Several finite element analyses (FEA) and lab experiments were employed. Incorporation 1% polypropylene fiber to RCC raised the rupture modulus (MR) by about 15% without significantly boosting compressive strength. Of all alternatives, models cast as a whole, without cold joints, gave the best overall performances, indicating fresh longitudinal joints should be the first choice whenever possible. The hierarchical benefit of joint interface reinforcement methods, compared to samples without reinforcement (NO), was: E > S > W > NO. The best compaction performance order obtained from FEAs was: 90° > 60° > N2 > N1 > 45° > 30°. The order of the highest MR values was: 90° ≥ 45° > 60° > N1 > 30° > N2. While the E generally yielded the best MR results in plain RCC samples, it did not provide the same benefit in fiber-reinforced samples. A cost-benefit analysis manifestly suggests that methods S and W are preferable to the E.